#include <math.h>
#include <iostream>

using namespace std;

class Gaussian {
private:
    float mu;
    float sigma2;
public:
    Gaussian();

    Gaussian(float, float);

    void setMu(float);

    void setSigma2(float);

    float getMu();

    float getSigma2();

    float evaluate(float);

    Gaussian mul(Gaussian);

    Gaussian add(Gaussian);
};

void test_gaussian();